Master or central station controller



April 1952 E. R. KILGEN 2,595,083

MASTER OR CENTRAL STATION CONTROLLER Filed April 9, 1951 5 Sheets-Sheet l 2 l2 FIG.I. /0 2 INVENTOR.

EUGENE R. KILGEN April 29, 1952 E. R. KILGEN MASTER 0R CENTRAL STATION CONTROLLER 5 Sheets-Sheet 2 Filed April 9, 1951 INVENTOR.

EUGENE R. KILGEN April 29, 1952 E. R. KILGEN MASTER OR CENTRAL {STATION CONTROLLER Filed April 9. 1951 5 Sheets-Sheet 3 EQGENE R. KILGEN BY April 29, 1952 E. R. KILGEN 2,595,083

MASTER OR CENTRAL, STATION CONTROLLER Filed April 9, 1951 5 Sheets-Sheet 4 FIG.I2.

FIG. I4.

INVENTOR. EUGENE R. KILGEN FIG. [6. wg

Patented Apr. 29, 1952 MASTER OR CENTRAL STATION CONTROLLER Eugene R. Kilgen, University City, Mo.

Application April 9, 1951, Serial No. 219,947

(C12 I'll-4T7) 1'1 Claims.

This invention relates to improvements in master or central station controllers for simplifying the individual or combination control over a plurality of remote station devices, mechanisms or the like.

This invention has as an object the provision of a master or central selective station controller which shall be useful for the control of communication systems," calculating machines, railway signal and switching controls, airport lighting and traffic control, control of the operation of aircraft and ships, fuel control on aircraft, fire protection control, gunnery control, control of aerial photography, and many other and similar devices, mechanisms and the like which may be controlled remotely.

It is an object to provide a master controller with a plurality of control means for remotely controllable devices, individual manual control actuating means and a plurality of memory devices or means which may be impressed with a predetermined control function, sequence or combination through the cooperation of the manual means whereby to control the remote devices in any combination of groups, in any sequence of group combinations in a common series or in diiferent series, and in any other combination, sequence, or variation thereof, all with a view to obtaining in a simple, compact central location' the maximum number of individual, combination and group controls for remotely located devices.

It is also an object of the present invention to provide a series of individual remote station con trol members and a series of combination control members, whereby the remote stations may be separately controlled, a selected number or class of remote stations may be combined under one control, or a series of different combinations of remote stations may be established.

It is a further object hereof to simplify the arrangement of remote station and station combination controls in or on a master controller to the end that the several remote stations may have individual control members by which they may be indicated or recognized, and the combination of remote stations may be controlled by a separate series of control members so interrelated with the individual control members as to make use of the latter to indicate or show the combinations as they are selected.

It is also an object of the invention to provide a master controller having a compact arrangement of moving or working parts which permits the accumulation of a large number of control combinations in a small housing so that all thereof may be advantageously mounted to isolate them from external vibration effects and to prevent the transmission of noise which may occur during operation of the controller.

The invention consists in the provision of a plurality of remote circuit selecting means independently operable, a plurality of master control means for combining the independent operation of the individual remote circuit selecting means, and a series of memory devices on each master controller adapted to maintain a preselected position by which the individual selecting means may be caused to operate in the combinations as desired.

The invention further consists in the arrangement of a plurality of rockable members each having a circuit control switch and a manual actuator whose movement serves to indicate the on and oh positions of the control switch, and a plurality ofreciprocable members each having an element associated with each of the .rockable members and an electromagnetic or electromechanical operating device for causing reciprocation of its associated reciprocable member, thereby determining a predetermined combination operation of the rockable members and the control switches responsive thereto.

This invention further consists in the improved parts and combinations and arrangements of parts as will be hereinafter more specifi-. cally pointed out and described in connection with the drawings, wherein:

Fig. l is a front elevation view of a master controller assembly;

Fig. 2 is an enlarged top plan view, partly in section, of the master controller assembly as viewed along the line 22 of Fig. l; I

Fig. 3 Ban enlarged fragmentary section-a1 elevation showing details of the construction taken along the staggered section line 3-3 of Fig. 2;

Fig. 4 is a fragmentary sectional plan view at line 4--4 of Fig. 3;

Fig. 5 is a fragmentary elevational view showing a rockable member in sectional elevation in association with a memory element carried by a reciprocable member;

Fig. 6 is a view similar to that of Fig. 5 illustrating a different position of the rockable member and memory element;

Fig. 7 is an enlarged fragmentary elevation of a rockable member of the assembly;

Fig. 8 is a greatly enlarged, partly sectioned, elevational view of an electromagnetic means for actuating the reciprocable member, the view being taken at line 8-8 of Fig. 2;

Fig. 9 is an enlarged elevational view of an electromagnetic motor means seen at line 9-9 of Fig.2;

bly of the movable memory element thereon;

Fig. 11 is a sectional detail view at line Hll of Fig. 10;

Fig. 12 is an enlarged transverse sectional elevational view taken at line l2-l2 of Fig. 1;

Fig. 13 is a greatly enlarged fragmentary sectional elevational view of an actuator assembly associated with the rockable members;

Fig. 14 is a view, in section, of a rockable member modified over that shown in connection with Fig. 10;

Fig. 15 is an enlarged, fragmentary elevational view of a bearing assembly for the shafts of the rockable members;

Fig. 16 is a sectional view of the bearing assembly taken at line lfi-IG in Fig. 15;

Fig. 17 is a fragmentary elevational view of a reciprocable member modified to provide for single series of memory elements and a single series of rockable members;

Fig. 18 is a fragmentary plan View of a modifled mechanical arrangement for actuating the reciprocablc members of either Fig. 8 or 17;

Fig. 19 is a fragmentary elevational View at line [SJ-19 of Fig. 18; and

Fig.'20 is a fragmentary planview of the mechanism shown along line 28-423 of Fi 1Q.

A presently preferred form of the invention has been disclosed in connection with Figs. 1, 2 and 3 of the drawings, and particular reference will be made to these views for an understanding of the construction and principles of operation embodied in the improved master controller. The improved master controller may be conveniently assembled, in a housing A having a front panel l provided with one or more longitudinal openings ll through which extend the pivoted elements or tablets [2 for actuating mechanism hereinafter to be described. Two openings or slots II and two rows of actuating tablets 12 have been disclosed in connection with Fig. 1, although it is within the scope of this invention to have one, two or more. Below the panel it of housing A there is provided a lower panel section It on which are mounted a plurality of button or plunger actuating elements M for switches l5. Switches are adapted to control electromagnetic devices or electromechanical means, all of which will be more fully explained hereinafter.

Referring now to Figs. 2, 3 and 12, the housing A is provided with a base B carried at the lower inner face of panel h! and projecting rearwardly into the housing above the bottom panel for supporting the circuit controlling assembly H3. At the rear margin of base B there is provided a supporting bracket ll which is adapted to carry a series or bank of switch elements l8, each switch element being adapted for control association and connection with a remotely located device, mechanism or the like, which it is desired to control from the location of the master control.

The control assembly is operatively mounted in a suitable frame structure mounted on base B and having spaced lower support members l9, corresponding upper support members 2%, vertical posts 2|, and frame brace straps 22 which are connected to the horizontally directed upper support members 20 and to the rear face of the panel [0 (Fig. 12). This control assembly frame is provided with a front wall 23 and a rear wall 25, the walls being in spaced vertical relation to support therebetween a series of remote circuit selecting means or rockably mounted members 25.

In the view of Figs. 3, 8 and 12, it will be observed that an upper and a lower series of circuit selecting means or rockable members 25 has been provided, though one or more than two such series may be employed. Each of the rockable members is mounted for angular movement in bearing assemblies 26, by which the horizontally directed shaft 2? of each of the members 25 is supported. The forward end portion of each shaft 2! is angularly bent or offset to form a crank portion 28 which, in turn, is operatively connected by means of a relatively stiff strap element 29 with a corresponding one of the tablets l2. It will be observed in Figs. 2 and 12 that there is provided an upper and a lower bank or series of tablets i2 which correspond with the upper and lower series of rockable members 25 respectively. In order to fit all of the rockable members and the cranks 28 therefor into the space, it has been found convenient to stagger the upper and lower series of rockable members and, as a consequence, the tablets l2 are also staggered in like order.

In Fig. 13, there has been disclosed in detail the means for operably mounting a tablet 12 which may be taken as typical of the construction for each of the tablets in each of the series or rows thereof. At the rear face of panel 10 there is mounted a plate 31 provided with a plurality of ears 32, adjacent ones of which pivotally support a head element 33 by means of a pivot pin or shaft having bearing engagement in and between the adjacent ears 32. Each tablet l2 projects forwardly of the front face of panel Iii through the previously mentioned slot If and is secured in a head element 33. The tablet is movable Within the limits of slot H to cause movement of the head about the axis of the pivot pin 3%. Head element 33 is formed with a rearwardly projecting arm 35 on which is fixedly mounted a finger 35, one end of the finger 36 being connected to the vertically directed strap 29, and the opposite end being formed to project upwardly, as at 3?.

In cooperation with each of the pivoted head elements and in substantial vertical alignment therewith, there is provided a fixed abutment pin 38 for pivotally anchoring one end of a toggle spring 39. The spring 39 has its fulcrum located in the slotted end of the abutment pin 38, and the body loop of the spring is flexed by movement of the finger 3'! into one or the other of two positions having an over center relation with respect to a neutral position which is in the plane parallel to and passing through the axis of pivot pin 3d and containing the fulcrum point at the notched end of the abutment pin 38. With this construction in mind, it will be appreciated that in the full line position of tablet i2 (Fig. 13), the toggle spring 39 will react to maintain the tablet in its up position against the upper buffer pad 40 suitably carried or secured in the slot I I. On the other hand, when tablet i2 is displaced downwardly to its dotted line position, toggle spring 39 will have its lower end engaging finger 3T moved inwardly past the said neutral position so as to react in a direction tending to hold the tablet l2 in its down position against a second buffer pad M suitably fixed on the lower face of slot II.

In connection with the described movement of tablet 12, it will be observed that the rearwardly projecting finger 35 carried by the pivoted head 33 will exert a vertical pull on the strap 29 to cause a vertically directed displacement thereof which, in turn, will raise the crank portion 28 of the rockable members connected thereto. In the views of Figs. 2, 3 and 12, when a vertical displacement of the connecting strap 29 occurs due to downward pivoting movement of a tablet l2,

the resulting upward angular displacement of the associated crank portion 28 will cause clockwise rotation or rocking movement of the member 25. Due to the toggle action of the springs 39, each tablet I2 will remain in its moved position, either against the upper buffer 40 or lower buffer 4|, when rocked about the pivot pin 34. Tablet movement can be by manual manipulation from the front or by motion of the crank 1 ings for supporting the forward end of this shaft adjacent the crank portion 28. The outer or rearward free end of the shaft 21 carries the contact element 42 of the remote circuit control switch [8, it being observed that the contact element 42 is positioned to engage and bridge the two electrodes 43 of this switch.

Switch I8 consists of a base 44 of suitable electrical insulation material having slots or recesses therein to receive and electrically isolate each of the electrodes 43 and to guide the movement thereof when the outwardly projecting ends are engaged by contact element 42. In the viewof Fig. 3, it will be observed that the upper bank or series of switches is are similarly angularly turned so that the projecting electrodes 43 over- 43', each of which is a continuation of the elec- 4 trodes 43 bridged by movable contact 42. The terminals 43 are connected with circuit lead wires 45 which, in turn, are brought to the switches 18 through openings 11' in the switch bracket 11 from a wire bundle 30. The bundle 3B is made up of the multiplicity of circuit leads coming to the master controller from all of the remotely located devices, mechanisms, etc. (not shown).

The control assembly [6 also includes a pin rality of reciprocable members or master control means 46 which are arranged in vertical, spaced relation and at an angle'to the position assumed by each of the rockable members 25. In the present assembly, the reciprocable members are angularly arranged for movement in a direction at 90 degrees to the axis of the rookable member shaft 21. Each of the reciprocable members is suitably formed as a fiat sheet metal stamping provided with one or more series of openings or apertures 41 (two series being shown in Fig. 3) through which the respective rockable members are arranged to extend. The shape or configuration of the openings 41 thusprovided in each of the members 48 may be seen upon inspection of Fig.

3. The several reciprocable members 46 are stiffened by longitudinally directed marginal beads 48 and conveniently supported andgguided in the lower support members I9, the support member being formedv with a suitable groove to receive 6 the lower longitudinal edge thereof. Similarly, the upper longitudinal edge of each of the members 46 is guided through the provision of a guide groove in the upper support member 28.

All of the reciprocable members 46 are adapted to be maintained in a retracted or inoperative position (to the left in Figs. 2 and 3) by means of a dummy rockable member 25 which has its crank arm 28 connected through a suitable resilient element or spring iii to an anchor 5| so positioned that the spring maintains a force on the crank portion 28' in a counterclockwise direction, thereby tending to rotate the dummy rockable member 25 in a counterclockwise direction. The dummy rookable member 25 is positioned (Fig. 3) in an opening 41' formed in each of the members 36 at the left hand end thereof and is adapted to engage a flanged edge of such opening. Reference to Fig. 4 will show the flanged edge 52 of this opening ii" to be engaged by the dummy rockable member 2'6. Each of the reciprocable members engages a buffer 53 carried by a buffer bracket arm 54, the bracket being located in such position that the members 45 when returned by spring 58 to their inoperative position (Fig. 3) strike the buffer 53 so as. to suppress noise and absorb the impact.

Referring now to Figs. 3, 4, 5, 10' and 11, it will be appreciated that the reciprocable member 46 is provided with combined memory and position control tappet means 58 arranged in series corresponding to the openings 41, a tappet being mounted in each of the openings 41 formed therein. Each tappet element 56 is formed of a suitable spring or resilient material, in which a pair of parallel, spaced sides 51 are integrally united by a transverse wall portion, the latter being divided into upper and lower striker faces 59 and Gil respectively. The transverse wall is interrupted at the central zone thereof by spaced slots 61, the slots being located on each side of a central stirrup 62 of arcuate or curved form. The side walls 51 of,the tappet 56 are provided with rearwardly extending ear portions 63, each of which is further formed with a pair of outwardly projecting spherically shaped recesses 64 and 65. The recesses 64 in each of the ears 63 are in opposite alignment, as are the recesses .65. The tappet means 58 (Figs. 10 and 11) are operatively mounted in the openings 41 of the re-..

1 formed a laterally directed projection having an edge saddle surface 59 between the spaced nibs 12 and 13. Tappet means 56 is removably mounted in the opening 41 of member 46 with the side walls 51 thereof located to pass on each side of the web (Fig. 11) so that the oppositely aligned spherical recesses 65 in these walls may be snapped over the ball bearing element 68, simultaneously with the engagement of the stirrup 62 on the saddle 69 between the nibs 12 and 13. Nibs l2 and 13 are, as a consequence, received in the spaced slotted openings BI and act to retain the stirrup portion 62 on its bearing saddle surface (is. When r ounted in this position, each tappet means 56 is frictionally retained in either one of two positions depending;

accaoss upon which of the pairs of recesses 64 or 65 are in engagement with the ball bearing element 63 embraced thereby. The construction and method of mounting means 56 in each of the openings 41 of. reciprocable members 45, are disclosed in connection with Figs. and 11, may be taken as typical for all of the means carried by the respective members 46.

In the construction of the present master controller, the rockable members are most 1 easily constructed of sheet metal and are conveniently formed in dies or by other means to provide a central elongated curved channel "it which is brazed, soldered, or otherwise affixed along the length of the shaft 21. The member, 25 also is provided with laterally directed wing portion 15, each carrying a buffer strip 16 of suitable resilient or pliable material. Each strip 16 is held in place on the wing 15 by means of an inner series of projecting tabs Ti and by the outer rolled or bent marginal edge '18. In the several positions shown in Figs. 5, 6 and 10, one or both of the striker faces 59 and 638 of the tappet 56 may have engagement with the buffer strips 16 on the wings I5 of the rockable member 25, whereby contact between hard surfaces is prevented and noise is effectively suppressed.

As heretofore pointed out, the members 46 carrying tappet means are adapted to move in a linear "direction, whereas the members 25 which are directed at an angle to the members 46 are caused to rock or rotate about the axis of their respective shafts. Relative movement, therefore, between rockable members .65 and reciprocable members 46 will cause the tappet means 56 to strike or be engaged by the rockable members.

The reciprocating motion of each of the members 46 is obtained, in a preferred form of the present invention, through the provision of electromagnetic means, now to be described. Reference will be had to Figs. 2, 8 and 9 for the details of the electromagnetic means employed for one of the reciprocable members 46, it being understood that similar means is used for all thereof.

The member 46 of Fig. 8 has a projecting lug on which is movably carried a pull arm 81. Axially beyond the movable pull arm 8| of the member 46, there is located a support structure 0 on which is suitably mounted a small electromagnetic actuator 82 having its magnetic armature 83 movable in a vertical direction.

The armature is urged in a downward direc-- tion' by means. of a resilient element or spring 84 having operating engagement with the armature 83 by means 85. The lower projecting end of armature 83 extends through an opening in the support structure C and is provided with a threaded stud 8S adjustably supporting a lever 81, one end of lever 8'1 being loosely supported in the structure C by element 88 and the opposite end forming a striker head. 90 carrying a butler strip 91. Lever 81 is supported in its inoperative position by means of an adjustable bar 92 which is carried at the undersidelof the support struc-. ture C. In Fig. 8, striker 93 on the lever 8'1 shown. in its inoperative position with the corresponding pull arm 8! resting on the buffer strip SI of the striker. The outer end of arm BI is provided with an upwardly directed hook portion 93 which is located below a rotatable shaft 94' carrying thereon 2. depending fin member 95 which extends along the shaft 94 above the location of all of the pull arms 8 I, and more particularly above the hooked portions 93 thereof.

The fin 95. carries a suitable bufier strip 3.5. Actuation of the, armature, 83 of the electromagnetic device 82 elevates the striker 9&1 on lever 81, thereby bringing the hook portion 93 of the associated arm 8i into engagement with the depending fin 95 on shaft. 94. This armature actuation, thereby effects an operating engagement, between the reciprocable member. 45 and the operating shaft 94. In the view of Fig. 8, counterclockwise rotation of operating. shaftv 94 is required to. slide or move the. member 48 in the direction. to cause the, sensing means or tappets 56 to approach and engage selected ones of the rockable members 25.

Rotational operation of shaft 94 may be. conveniently obtained through the provision of an electromagnetic motor means lilfi (Figs. 2 and 9) arranged with its armature it connected to a crank. arm I02 by means of a, clevis connector [03. The. operating crank W2 for shaft 94 is provided with a, laterally projecting arm Hi4 adapted to engage an adjustable stop element I65 carried by bracket N15. The operating shaft 94 is conveniently rotationally supported in a bearing bracket I51 located adjacent the electromagnetic motor means 1% and in a second similar bearing I08 (Fig. 2) supporting the opposite end of said shaft. Motor means i i-8 and bearing l0! carried on a platform Hi! supported by an auxiliary base. block, 1H secured to one end of the base 13 on which the control assembly 16 is mounted. It has been previously pointed out that the operating cchanism shown and described, in connection with Fig. 8 may be taken as typical of the operating means associated with each of, the reciprocable members 48. On the other hand, the electromagnetic motor means [08 is adapted to operate any of the reciprocable members 46 having its hooked, pull arm 8! in engagement with the depending fin 95 on shaft 93.

A guard plate 9'5 is attached to the fin 95 to prevent the other pull arms 8| being actuated by the other electromagnetic means 82 to raised position where the hooked portion 93 may move behind the fin 95 and prevent its return to release the selected one of the arms 83.

Referring now particularly to Fig. 2, the right hand one of the button elements l4 for the switch means I5 has been shown in detail with respect to a typical electrical circuit system associated with the electromagnetic actuator means 82 and the electromagnetic motor means ltd. Each of the switches 15 under control of the switch button I4 is adapted to control a similar electrical circuit, but only one typical circuit has been disclosed in Fig. 2, in order to avoid confusion. in the drawings. Switch means [5 comprises a bridge element l M and three switch contacts H5, H6, and H1. Contact H8 is connected to a source of electrical energy such as the .battery H8, however it is understood that the current source be alternating current. From. battery H8, a lead H9 extends into connection with the motor means Hit, a branch lead i25 being taken from lead H9 for connection with the electromagnetic actuator 62 disclosed in connection with Fig. 8. The opposite side of the circuit for motor means [(30 is made by the lead I26 connected with switch contact H1. The opposite side of the circuit for the electromagnetic actuator is made by lead l22 with the switch contact H5.

When switch button [4 is depressed its bridge element I I4 first electrically connects switch contacts H5 and H6, thereby closing the battery 9 circuit through the switch and the electromagnetic actuator 82 and causing the elevation of the pivoted pull arm 8| to bring its hooked end 93 into engagement with the fin 95 on shaft 94. Continued inward movement of button I4 causes its bridge element II4 to engage contact II'I, thereby closing the battery circuit through leads H9 and I2I with the motor means I00. Energization of motor means I results in rocking displacement of the shaft 94 and reciprocation of the engaged member 46 without necessitating movement of any of the others thereof. Release of the switch button I4 breaks each of the above described circuits to the electromagnetic means 82 and motor means I00, thereby permitting the the pull arm BI to drop free of the fin 95, at which time return spring 50 (Fig. 3) causes the dummy rockable member 25' to restore that one ofthe members 48 which has been reciprocated to its inoperative position. I

The operation of the master controller which forms the preferred embodiment of the invention will now be described in connection with Figs. 2

and 3. It will first be assumed that each of the tablets I2 has been moved to its upper position which corresponds with the open or circuit break position of the associated switch means I8, and that each of the switch buttons I4 is in its outward, off position. Now let it be assumed that it is desired to individually, manually control remotely located devices X, Y, and Z (not shown) corresponding to the tablets I2 marked X, Y and Z. Obviously one, or any group or series of these tablets I2 may be individually actuated, as desired. T accomplish individual or separate control, the operator at the master controller simply depresses the individual tablets IZX, IZY or IZZ to move them to their circuit make position. Rockable members 25 for each of these tablets are rotated, thus causing the respective switch arm contacts 42 to bridge the pairs of electrodes 43. Since each tablet I2 has a toggle spring 39, the switches I8 affected by tablets I2X, I2Y or I2Z will remain in circuit make or on position until the tablet is manually elevated or moved to off or break position.

Now if it is desired to group the remote devices (not shown) for simultaneous and repeated operation, the operator must first push in on the appropriate switch button I4. Actuation of the switch I associated with the button I4 thus selected, will shift or reciprocate the associated reciprocable member 45 by its arm BI and electromagnetic means 82 and motor means I90. Holding button I4 depressed, maintains the member 46 in operative position (Fig. 5) relative to the inoperative position of the rockable mem bers 25. It may also be assumed that the tappet means 56 on the operated one of the members 43 are in inoperative or off positions, such as is shown in Fig. 5, and that they are frictionally retained by reason of the pair of spherical recesses 64 engaging the ball bearing element 68 (Fig. 11). Now in order to set up the simultaneous or repeat control of the desired remote devices (not shown), the operator must depress the tablets IZX, I2Y and I2Z, thereby rocking the associated members 25 to their operative positions illustrated in Fig. 6, for purposes of ex-- ample. This displacement of members 25 shifts the position of the tappets 56 so that the tappet is frictionally held in its new or on position by reason of the spherical recesses 65 engaging the ball element 08. It will be remembered that depression or downward movement of the tablets I2 shifts the active position of the toggle spring means 39 to retain the tablets in such moved position. As a consequence, the associated switch means It is retained closed, completing a control circuit through such switch to the associated remotely located mechanism or -'device (not shown) which is connected thereto. If the operator now releases switch button I4, thereby breaking the respective circuits to ,the electromagnetic actuator 82 and motor means I00 it will be appreciated that the reciprocable member 45 will be returned to its inoperative position by action of spring means 50 through the dummy rockable member The tablets I2X, I2Y and I22 will, however, remain depressed until they are manually moved to their oif or up positions, thereby opening the respective switch means I8 and decontrolling the remotely located devices.

If, at a later time, it should be desired to reestablish control over these remotely located devices, the operator at the master controller is required only to push the switch button I4 so designated, causing movement of the same reciprocable member 46 to its operative position, and by which movement the memory means or tappets 56, previously set up, will forcibly and automatically rocket members 25 to the on position for closing the switches 58 associated therewith. This function of the tappets is the equivalent of providing the controller with a capacity to remember a given group or combination or unit control plan. It may be visually followed by observing the movement of the tablets IZX, I2Y and I22, corresponding to the example given.

The value of the tappet means 56 resides in their function to remain-in a given position unless acted upon by a superior external force. The external force required can come only from the rockable members 25 when the latter are moved by manual manipulation of the connected table-ts I2. If the tablet I2 is not manually held or moved, the connected rockable member 25- is relatively free and can be moved by the memory tappet means 53 when the reciprocable member is displaced. For example, in Fig. 5, the angular position of the member 25 corresponds with its inoperative position in which its switch means I8 is open, and the tappet means'56 is in alike position. The member 25 and tappet means are adjacent by reason of the reciprocable member 46 having been moved to the right relative to the position of shaft 21 for member 25.

Now considerthe positions assumed by the parts disclosed in Fig. 6. The reciprocable member 46 is shown in its operative position or moved to the right and the rockable member 25 is shown in its circuit make position. The effect of these combined movements of members 43 and 25 15 to produce a shift in the angular position of the tappet 56 from the inoperative position of Fig. 5, whereby the means 56 has the paired spherical recesses in position embracing the ball hearing 68 carried in the web 66 of member .7 45. Should the reciprocable member 46 be now moved to the left relative to the shaft 27, the tappet 56 will remain in the shifted position and will move away from the rockable member 25, thereby leaving sufficient space in which the member 25 may be moved to its inoperative position, so that the parts have positions as shown in Fig. 10. Accordingly, the reciprocation of any one of the members 46 will cause the means 56 carried thereby to assume positions within the path of motion of the rockable members 25. If all of the rookable members 25 are in an inoperative position and all of the means 56 are likewise in an inoperative position, motion of any one of the members 46 will not produce displacement of members 25 or tappet elements 56. -11 the other hand, with a member 46 in its moved position, the elements 56 or any of them on that member may be shifted to operative position by manual manipulation of the desired tablets I2, thereby rockably displacing the connected members 25 to set up any desired one or a combination of the elements 56. Conversely, if the elements 56 carried by the reciprocable member 46 have been set up or impressed with a predetermined desired combination, movement of member 46 will cause the pre-set elements 56 to strike the desired combination of rockable members 25 and cause them to move into circuit make position closing the respective switches I8 asso ciated therewith.

Referring now to Figs. and 16, there has been shown a novel bearing assembly for supporting each end of the respective shafts 21 carrying the rockable members 25. It is noted that the bearing assembly to be described is typical of each of the bearings required for mounting these shafts 21. The bearing comprises a nonmetallic annular element I25 which surrounds the shaft 21 and a holder I26 for the nonmetallic element, which holder surrounds the shaft and supports the element on the frame wall, such as the front wall 23. Holder I28 is provided with a plurality of spaced inturned prongs I21 which engage in suitable slots formed in the front wall 23 about the shaft aperture. Holder I25 supports the nonmetallic element I25 by means of a plurality of outturned fingers I28. A snap ring retainer I29 is provided to releasably engage recesses in an outer portion of the shaft I21 adjacent element I25. A shaft bearing element of this form is particularly well suited for use in connection with the master controller herein described, as it supports the shaft 21 against vibration efiects and reduces friction to a minimum. Furthermore the nature and construction of this bearing facilitates assembly of the shafts 21, and greatly reduces the cost involved.

Fig. 17 discloses a modified form of reciprocable member 46' in which a single series of memory tappets 55 has been mounted. Such modified members 46 are, however, movably controlled by means similar to that disclosed in connection with Fig. 8. Briefly, this mechanism includes the striker 99 effective to elevate pull arm 8| into hooked connection with I the depending fin 95 on the operating shaft 94 thereby mechanically connecting the member 46' with the operating shaft 94. Movement of the striker 90 in an upward direction is obtained through the provision of electromagnetic means such as that shown at 82 in Fig. 8.

In Figs. 18 through 20, there is disclosed a modified form of the present invention in which the electromagnetic operating means shown and described in connection with Figs. 8 and 9 has now been replaced by an electromechanical operating mechanism. The previously described push buttons I4 for electric switches I5 have, in the modified arrangement, been replaced by push buttons I4 directly connected to rearwardly extending push rods. Beginning at the right hand one of the push buttons I4 of Fig. 18, it will be observed that the push rods I32, I33, I34 and I35 progressively increase in length. Each of these push rods is connected to a motion changing l2 pivoted element I36 movably mounted on a suitable support member I 31 by means of pivot forming elements I38. The motion -changing elements I36 are connected with a second series of variable length push rods I40, I4I, I42 and I43, all of the latter push rods extending in a common direction for operative connection with a series of substantially identical pivoted levers I45. A typical one of the levers I45 has been disclosed in Fig. 19, such lever I45 being associated with the push rod I4 I. Each of the levers I45 is pivoted at element I46 intermediate its ends on a suitable bracket I41 carried adjacent an end face of the base B. The upper ends of each of the pivoted levers H have rotatable adjustment elements adapted to receive in threaded engagement the end of a pull arm I5I. The pull arms I5I are identical, and each thereof is connected with 2 lug I52 formed on or carried by the adjacent end of the reciprocable member lt. The presently modified electromechanical actuating mechanism operates to make or break the control circuit for a remotely located device the previously de,

scribed switch means I5. The mechanical portion of this control system is related with the modified reciprocable master control members 45' which in the present disclosure are similar to the modified member 45 shown in Fig. 17. The modified members 45' have a single series of openings, each containing one of the tappet elements 56.

In operation, reciprocating motion of the members 43 may be obtained by manually depressing a selected one of the buttons I l, causing pivoting displacement of the'motion changing member I35 and consequent longitudinal displacement of the connected push rod I lI. In the view of Fig. .18, this control function has been shown in connection with displacement of push rods I33 and Hi to cause pivoting movement of the vertically directed lever Hi5 and displacement of the member 46 connected to the lever M5 by means of the pull arm I'5I. The means by which each of the members 45' is returned to its inoperative position has not been shown here, as it is similar to that shown in connection with Fig. 3 at 25, 2i? and 59.. It should be clear how this spring oper ated return mechanism may be applied to the modified reciprocable members 45.

Fig. 14 discloses a modified construction which may be employed for each of the rockable members 25 of Fig. 10. The modified rockable member I55 is formed with a central longitudinally directed channel I55 having oppositely directed curved wings I51 and a rolled edge I58, imparting longitudinal stifiness to the member. The 1nodified rockable member may be employed in master controller assemblies where it is not particularly necessary to suppress or deaden noise. Therefore, it is noted that the modified rockable member I55 has not ben made for securing a noise suppressor strip on the wing portions I51, such as has been included in connection with the rockable members 25. In constructing a rockable member of the modified type of Fig. 14, the curving configuration of each wing portion I51 must be given an increased depth to make it conform to the effective curvature of the buffer strip 16 carried by the preferred form of rockable member 25, so that the same physical relationship may be preserved with the elements 56. Constructing the modified rockable members 55 in this manner will permit complete and full interchangeability with the first described rockable members 25.

atcaoss The master controller is connected with the remotely located devices, mechanisms, etc. (not shown) by the pairs of leads in the wire bundle or cable 39, Figs. 2 and 12. A suitable master on-off switch I60 is connected into this cable to permit the controller to be operated into its several control combinations, as desired, without actually affecting the devices controlled during the set up operation. A single switch Hill has been shown, but more switches may be employed as occasions demand.

Some materials for construction have been suggested herein, but the invention is not to be limited in this respect as the use or application able-depending upon costs involved, the service requirements and whether or not it should be fire resistant or protected for shock and vibra tion effects.

Commercial applications of the present master controller are many and varied, including therein av complete signal and switch control system for a railway yard and station layout, operation of the man instruments and recording devices found in connection with wind tunnels, and control over the operation of a ship. It may be mentioned also that the present invention has utility in connection with the operation of the large airplanes, both commercial and military. For example, the control of aircraft engine starting and flight operation, the selection or switching of fuel tanks, the detection of fire and op eration of fire protection systems, cabin pres sure and ventilation, and many other functions can be controlled from the present controller by arranging the several control functions in groups that a rectifier or transformer may be added to. adjust the current to suit conditions.

The present invention has been described in connection with a preferred embodiment and in the light of certain modifications thereof, but it should be clearly understood that further and additional modifications in the construction of the several parts and in their arrangements in the assembly may come within the scope of the claims hereinafter appearing.

I claim:

1. In a master controller for remotely located devices having control circuit connections with the master controller, the combination of a plu rality of angularly movable circuit selecting members, each movable between circuit make and break positions for controlling said remote devices, a plurality of control members movable relative to said circuit selecting members between operative and inoperative positions, tappet means carried by each of said control members corresponding in number to said plurality of circuit selecting members, each of said tappet means being movable to a position for contacting an adjacent circuit selecting member to influence the position of the latter upon movement of the 14 control members into operative. position, and separate manual'means connected with each of said circuit selecting members for moving the latter independently of said tappet means.

2. In a master controller for remotely located devices having control circuit connections with the master controller, the combination of a plurality of rockable circuit selecting members movable between circuit make and break positions, each of said members being adapted to control the circuit for a remote device, manually movable means connected with each circuit selecting member for moving the latter between its said circuit make and break position, and other means adapted to control the movement of said circuit selecting members in predetermined combinations, said other means including control members for a plurality of different predetermined combinations, and movable elements carried by each control member to effect the movement of said circuit selecting members in said predetermined combinations, said control members being movable between operative and inoperative positions relative to said circuit selecting members.

3. A master controller as set forth in claim 2, wherein resilient means is provided for yieldingly retaining said manually movable means in position to hold said connected circuit selector member in either or its said positions, whereby said manually movable means visibly indicate the said position for the circuit selector member.

4. A master controller as set forth in claim 2, wherein said movable elements comprise a body having spaced sides formed with recesses, and ball means carried in said control members adjacent each of said body sides to be embraced by said recesses for retaining said body thereon.

5. In a master controller for a plurality of circuits associated with remotely located mechanisms to be controlled separately or in selected combinations, said controller including a rockable member for each of the remote mechanisms. a circuit make and break switch controlled by each rockable member, separate mechanism for rocking each of said rockable members between circuit make and break position for separate control of the remotely located mechanisms, a series of control members movable relative to said rockable members, mechanism for moving each of said control members between operative and inoperative control positions, and tappet elements on each of said control members to translate movement of a control member into rocking movement of a predetermined number of said rockable members, each of said tappet elements being movable between operative and inoperative positions, whereby to predetermine the number and hence the combinations of remotely located mechanisms subject to the movement of said control members. i

6. A master controller as set forth in claim 5, wherein the mechanism for rocking each rockable member comprises pivoted tablet elements connected with each rockable member, said tablets being visible at all times to indicate the position of the connected rockable member, and yielding means connected with each said tablet to retain the tablet in pivoted position.

'7. A master controller as set forth in claim 5, wherein said control members each comprise an elongated frame movable in a linear path and relative to said rockable members, and said tappet elements are mounted on said elongated frames for rocking movement between positions corre- 'sponding with and opposed .to the positions as sumed by said rockable members.

8. A master controller as set iorth in claim 5, wherein each control member comprises a frame having a series of apertures separated by web portions, said web portions each having an aperture and a spaced bearing projection intermediate its ends, a bearing element disposed in each aperture, and each of said tappet means is adapted to have a rocking engagem on said bearing projection and to embrace said bearing element for yieldingly retaininr its position.

A control system for a plurality of remote devices comprising individual switch mean for the remote devices, selecting means for operating said switch means to render the remote devices individually controllable, zgroup control means for actuating said. selecting means in preselected groups, and memory means selectively movable relative to said group control means to assume positions for selecting the desired remote devices to be operated as a group, said memory means being rendered effective for group operation of the remote devices upon operation of said ,group control means.

10. A control system for a plurality of remote devices comprising individual switch means for the remote devices, individual selecting means operating said switch means, a plurality of group control means for ctuating the selecting means in diiferent preselected groups, and memory means movable relative to said group control means to preselected group control positions and movable with said group control means for effecting group response or" the remote devices.

11. A control. system for a plurality of remote devices comprising individual control switches for each remote device, selecting means operable for actuating said control switches to determine response of the remote devices, group control means adjacent said selecting means for movement rela tive thereto, memory means movable relative to said group control means into positions for operating said selecting means in groups, separate control means for selecting operation of said group control means, and visible elements connected with said selecting means to indicate the remote devices which are selected for response.

12. A control system for selectively grouping remotely located devices for response to operation of central station controls comprising, a bank of circuit make and break switches to which the remotely located devices are connected, individual switch selecting and operating means adjacent said bank of switches, group control means movable adjacent said selecting and operating means for effecting selective group responses for the remote devices, meansior moving said group control means to set up group response, and memory elements carried with said group control means, said elements on said group control means being selectively movable between positions selecting remote devices for group response upon movement of said group control means and positions preventing response of the remote devices in the selected group.

13. A control system for grouping remotely located devices for simultaneous response to selectively operable central station controls, said system including individual switch controls for the remote devices, individual selecting means connected with said switch controls for opening and closing said switch controls, a plurality of group control means adjacent said selecting means for movement from inoperative positions into positions for effecting response of the remote devices through said selecting means, and a plurality of memory elements carried by said group control means for selective location in positions to effect repeated grouping of the remote devices in selected groups and positions to effect repeated grouping of the remote devices in other selected groups.

14. The control system set forth in claim 13, including exposed operating elements connected with said switch controls for individual operation thereof, said exposed elements visually indicating which remote devices are selected for response.

15. A control system for grouping controllable devices for simultaneous response, including individual switches for the remote devices, individual selecting means for the devices connected with said switches for opening and closing the same, a plurality of group control means movable from a normally inoperative position to a position operating said selecting means in preselected groups, mailual means operating said sel cting means invidually, and memory elements movably carried by said group control means for response to operation of said manual means to preselect the devices for group response, said memory elements normally tending to remain in moved position to repeat the group response of the selected devices.

16. A control system for selecting group response of individually controllable devices, including a circuit make break switch for each device, angularly movable switch selecting means connected with said switches, exposed operating means connected with said selecting means for visually indicating the position of said switches, a plurality of group control means having a linear path of movement relative to said angularly movable selecting means, a plurality of elements on each or said control means, said elements being selectively movable to positions to effect operation of said angularly movable selecting means, and switch means for controlling initial movement of said group control means to place said elements in position adjacent said angularly movable switch means to be moved thereby for setting up a desired group of devices for response and to control subsequent movements of said group control means.

17. A control system for selecting individual controllable devices for group response comprising an ularly movable selecting means for each of the devices, a plurality of group control means for actuating the selecting means in preselected groups, memory on each of said group control means for movement into and out of positions preselecting and repeating the desired group response of the devices, and means operating each of said group control means to obtain the group response of the devices, said memory means on the operated one of said group control means operating said selecting means to clear the group response of all devices not preselected for such response.

EUGENE R. KILGEN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,259,156 Ebart et a1 Oct. 14, 1941 2,354,229 Smessaert Aug. 1, 1944 2,469,754 Tierney May 10, 1949 

